Plug-valve.



A T. KEENAN.

PLUG VALVE. APPLIOATION FILED SMT. 2 9, 1909.

EW A

IIIIIIII IIIII ,Patented Aug. 23, 1 910.

UNITED sTATEs PATENT oFFIoE.

THOMAS KEENAN,

0F BROOKLYN, NEW YORK, ASSIGNOR TO KEENAN REGULATOR AND STEAM FITTING CO., OF NEW YORK, N. Y., A COPARTNERSHIP.

PLUG-vALvE.

To all whom it may concern:

Be it known that I, THOMAS KEENAN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Plug-Valves, of which the following is a specification.

This invention relates to a plug valve which can be used in various manners such as on feed water regulators, for flushing tanks, steam traps or elsewhere.

This invention resides in certain novel details of construction set forth in the following specilication and claims andV illustrated in the annexed drawing in which Figure l shows an elevation in section of a plug valve embodying this invention and applied to a steam trap. Fig. 2 shows a plug valve on somewhat larger scale than in Fig. l. Fig. 3 is a section along the line m-m Fig. 2. Fig. 4 is a section along the line jz/-fz/'Fign 2. Fig. 5 shows a` plug valve embodying this invention and provided with a partition. Fig. 6 is a view likeFig. 5 the partition having been removed. e

In this drawing is shown a case or housing a having a tapered seat f or neat seating or reception of the correspondingly tapered plug l). This plug has a passage o which can serve as an inlet and which can be of more or less extended or longitudinal capacity to allow free passage therethrough in to or from the plug valve. If passage o serves as an inlet the liquid or vapor passing therethrough can escape laterally at each side through the axial or central passage or bore d. A coil spring e is shown seated about the projecting end of plug b which is threaded for the application of a nutor screw ring g. About the spring e is seated a housing or shell f to protect the spring against the entry of dust or foreign matter. The spring e being pressed by nutg against the housing f will tend to draw the plug b home to its seat. The shell f will prevent dirt or foreign matter from lodging on the springs. The plug Z) can be rotated or oscillated by suitable means as for example by arm h provided with a float 2'.

The plug b has a recess or cut 7c for receiving balancing prevent the plu being pressed unduly against a side o the housing. The flow through the valve plug can take place either Specification of Letters Patent. Application led September 29, 1909.

. my hand in the pressure if Vrequired to A.

Serial No. 520,094.

through the axial or longitudinal passage d extended through the plug in axial direc-.

Patented Aug. 23, 1910.

Or the ow could be allowed to .take place through the radial passage o and out at either side through the axial passage d. If coming vfrom different sources materials, as for example steam and water entering by the circumferential openings o, can be kept separated in the plug by a partition m suitably screwed into the axial bore in the plug. If the partition is removed the inaterials are allowed to mix in the plug. In Fig. (S the spring o is shown seated in a recess of casing @and the housing f omitted.

I claim zl. A device of the kind described cornprsing a tapered plugand a housing with correspondingly tapered seat, the plug having a passage extended radially through the circumference of the sage through the plug connecting with the radial passage, said plug having a spring at its pointed end portion to draw the plug to its seat, a nut screwed to the plug to compress the spring and a shell seated about the spring to protect the same.

2. A device of the kind described coinprising a tapered plug and a housing with correspondingly tapered seat, the plug having a passage extended radially through the circumference of the plug and an axialpassage through the plug connecting withvthe radial passage, said plug being adapted for seating a partition for the separation of substances coming from different -sour'ces through the radial passages.

3. A device; of the kind described "comprising a tapered plug and a housing with,l correspondingly tapered seat, the plug hav-V ing a passage extended radially through the circumference of the plug and an axial passage through the plug connecting with theradial passage, said plug having a recess to allow l'ialancing pressure between the plug and the housing.

In testimony whereof I have hereunto set presence of two subscribing witnesses.

. THOMAS KEENAN.

Witnesses:

l/V. C. HAUFF,

CHRISTIAN ALMSTAEDT. 

